GMSA RTV Gray Silicone Sealant is a professional one-part RTV (Room Temperature Vulcanizing) silicone gasket maker designed for high-temperature sealing applications. The advanced gray silicone formula cures with atmospheric moisture to form a strong, flexible rubber gasket that delivers reliable sealing performance under demanding conditions. As a result, it effectively replaces conventional paper and cork gaskets used in automotive engines, industrial machinery, and mechanical equipment.
Designed to withstand intermittent temperatures up to 343°C,it maintains long-term flexibility while resisting heat, vibration, aging, and mechanical shock.
Features
it provides excellent adhesion to metal and many engineering surfaces, creating durable leak-proof seals in high-temperature environments. Furthermore, the flexible silicone gasket absorbs vibration and movement without cracking or shrinking. In addition, its moisture-curing technology produces a tough rubber seal that remains effective for years.
The sealant develops a protective skin in approximately 10 minutes under normal conditions and cures within 24 hours for a 1/4-inch bead. Moreover, it offers excellent durability, making it suitable for continuous maintenance and repair applications. Therefore, mechanics, maintenance professionals, and industrial technicians trust GMSA RTV Gray Silicone Sealant for reliable sealing performance.
Key Features
- High-temperature RTV silicone gasket maker
- Gray professional-grade silicone formula
- Withstands intermittent temperatures up to 343°C
- Flexible after curing
- Excellent resistance to vibration and aging
- Replaces paper and cork gaskets
- Strong waterproof sealing performance
- Fast skin formation
- Suitable for automotive and industrial applications
- Long service life
Applications
GMSA RTV Gray Silicone Sealant is ideal for:
- Automotive engine gaskets
- Gearbox covers
- Valve covers
- Water pumps
- Industrial fittings
- Mechanical flanges
- Machinery maintenance
- High-temperature sealing
- Industrial equipment repairs
- General workshop applications
How to Use
First, clean the surfaces thoroughly and ensure they are dry and free from grease, oil, and dust. Next, cut the cartridge tip and nozzle at a 45° angle according to the desired bead size. Then, apply GMSA RTV Gray Silicone Sealant evenly along the sealing surface. Immediately assemble the components and smooth the sealant if required. The sealant typically forms a skin within 10 minutes, cures within 24 hours, and reaches full rubber strength after approximately 7 days.
Storage and Safety
Store GMSA RTV Gray Silicone Sealant below 25°C in a cool, dry place away from direct sunlight. Ensure proper ventilation during application, avoid direct contact with eyes, and keep the product out of reach of children. For best performance, use the sealant within one year from the manufacturing date.
Buy in Pakistan
Buy genuine GMSA RTV Gray Silicone Sealant from 7Mart.pk, your trusted supplier of industrial sealants, adhesives, and maintenance products in Pakistan. Additionally, we offer competitive prices, authentic products, and nationwide delivery for workshops, industries, and professional users.
